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Explain what the Body Mass Index (BMI) calculates. Then, write the formula that is used to determine a person's BMI. Into which category would a person with a BMI of 35 fall? (Site 1)

The part of the nephron provides initial filtering of the blood in the urinary system.

Many dental offices prefer preset trays because the use of these trays or what

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.